Analytics Specific events like AnalyticsRevenueEvent and AnalyticsScreenEvent about amplify-swift

[lawmicha]

public struct AnalyticsScreenEvent: AnalyticsEvent {

    /// Name of the event
    public var name: String

    /// The route representing the screen
    public var route: String?

    /// The referrer of the event
    public var referrer: String?

    /// Time it took to load the screen
    public var loadTime: Int?

    /// Properties of the event
    public var properties: [String: AnalyticsPropertyValue]?

    public init(name: String,
                properties: [String: AnalyticsPropertyValue]? = nil,
                route: String? = nil,
                referrer: String? = nil,
                loadTime: Int? = nil) {
        self.name = name
        self.properties = properties
        self.route = route
        self.referrer = referrer
        self.loadTime = loadTime
    }
}